Take a Test Pamela Baptiste Harris Internet Explorer P http Student/Play d-12412

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Take a Test Pamela Baptiste Harris Internet Explorer P http Student/Play d-124126666 bing x YAHOO Yahoo Search Search Tiger Woods t ebay MyMathLab Help Pamela Baptiste Harris 2/14/16 1:01 AM Quiz: Module 3 Quiz Submit Quiz This Question: 2 pts 9 of 12 (0 complete This Quiz: 17 pts possible Find the area of the shaded region. The graph depicts the standard normal distribution with mean 0 and O A. 0.8212 standard deviation 1. O B. 0.6424 O C. 0.1788 O D. 0.3576 0.92 z 0.92 Click to select your answer. E 01 AM HE Search the web and Windows 2/14/2016

Explanation / Answer

We have to find the area of the shaded region given that standard normal distribution with mean 0 standard deviation 1.

That is we have to find P(-0.92 < X < 0.92).

P(-0.92 < Z < 0.92) = P(Z <=0.92) - P(Z <= -0.92)

We can find this area by using EXCEL.

Syntax :

=NORMSDIST(z)

where z is test statistic value.

This syntax will gives us,

P(Z <=0.92) = 0.8212

P(Z <= -0.92) = 0.1788

P(0.92 < Z < -0.92) = 0.8212 - 0.1788 = 0.6424

Option second is correct.

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